Our USB hubs are perfect for adding USB ports to a computer. Between keyboards, mice, cellphones, PDA's and iPods, the number of devices using USB technology is increasing. When you pair a USB extension cable with one of these hubs, you can bring 4 plug & play USB ports up to the top of your desk for easy connectivity. For most applications, a USB 1.1 hub will do the job. However, if you are transferring large amounts of data to an iPod or external drive, you should use USB 2.0. If you have any questions, please call 800-278-4002 or email email@example.com.